Improvement in dies for making body-loop blanks for carriages



E. D. CLAPP & F. VAN PATTEN. Dies for Making Body-Loop Blanks forCarriages.

y Patented 0ct.5,1875.

J WM 4; n W f 1% w UNITED STATES PATENT OFF on EMEROUS D. CLAPP ANDFREDERICK VAN PATTEN, OF AUBURN, NEW YORK.

IMPROVEMENT IN DIES FOR MAKING BODY-LOOP BLANKS FOR CARRIAGES.

Specification forming part of Letters Patent No. 168,322, dated October5, 1875; application filed September 15, 1875.

CASE B.

ployed for forming the blank for the bodyloop. Fig. 2 is a plan view ofthe face of the upper die. Fig. 3 is a plan view of the face of thelower die. Fig. 4 is a perspective View of the blank as it comes fromthe dies. Fig. 5 is a perspective view of the blank after it is severedfrom the bar from which it is forged, and the fins made by the dies areremoved.

The object of our invention is to produce a body-loop blank forcarriages in such a manner that it will have a contour which will enablethe blacksmith to readily and accurately turn up the lip which embracesthe spring-bar of the body of the carriage, and at the same time have agraceful and better shape than that heretofore given. It consists in thedies and the blank produced by them, as will be more fully hereinafterset forth.

To produce our body-loops we take a bar of iron of suitable size andshape, and by a drop or other suitable means break down or flatten thatpart of it which forms the lip on and the rear of the boss A. As thusfashioned, the blank is ready for swaging in the dies, which areconstructed as follows: The lower die G is provided with a circular ornearly circular depression, B, of a depth and a diameter suitable toform the boss A of the body-loop. At or near the center of thisdepression is formed a protuberance, c, which projects vertically to aheight sufficient to make a depression in the boss A, which acts as aguide to the drill or punch which perforates said'boss in themanipulation of the blank by a blacksmith.

A groove, C, slightly shallower and narrower at its end adjacent to thedepression B than at its outer end, is formed in the face of the diefrom the depression B to its outer end. Upon the opposite side of saiddepression B is provided a recess, D, which, for a portion of the way,has its lower surface a plane and its sides slightly rounded. It thenrecedes in a curve, and has its lower surface and its sides rounded.

That part of the die forming the recess D and depression B is slightlyraised above that forming the groove C, in order that the fin may not bewholly on the top surface of the boss A, and that the lip a, may havethe configuration more fully hereinafter described.

The upper die E is provided with a recess, F, corresponding in generalcontour to that in the lower die at C. It also has a depression of acircular or nearly circular form, and of a proper depth to finish theboss A, the up per surface of which is a plane, and which is continuedto finish the upper surface of the lip a. This continuation is curvedfrom the point I; to permit the lip to slightly project above the faceof the boss A. The dies so formed are secured in any of the well-knownpresses or hammers, and are ready for use.

The bar, broken down to form the lip and the boss, as described, isplaced, properly heated, between the dies, and is forced by the upperdie into it, and the lower one filling the recesses and depressions inthem both. The blank thus formed, when removed from the dies, has thecontour shown in Fig. 4.. It is then separated from the bar at the point(I, and the fin e is removed by milling, filing, or any of the wellknown means for doing this. The blank then has the general appearanceshown in Fig. 5.

That portion of the lip a at f is made thicker than that at g, as shown,and the latter portion is thrown'slightly above the face h of the bossA, in order that aguide may be formed for the blacksmith in bending thelip at right angles to the face h of the same, in the subsequentoperations which he performs upon it in adapting it to the springbar ofthe carriagebody. The body-loop blank thus formed has a more regularcontour than that heretofore given, and is especially adapted by theconfiguration. of its lip a to the subsequent manipulations of theblacksmith, as above described.

What we claim as our invention, and desire In testimony whereof we havesigned our to secure by Letters Patent, is names to this specificationin the presence of l. The dies having the depressions and retwosubscribing witnesses.

cusses of the vform substantially as shown and EMEROUS D. OLAPP.

described, and for the purpose set forth. FREDERICK VAN ,PATTEN.

2. The body-loop-blank, made with a lip, a, Witnesses:

of the form substantially as shown and'de- HORACE T. COOK,

. scribed, and for the purpose set forth. DELAMER E. OLAPP.

